In situ stress azimuth and magnitude from well log measurements. Final report, May 1993-May 1995
The objective of Part 1 is to: (1) theoretically relate static to dynamic moduli in rocks with clays; (2) give a theoretical method for calculating horizontal from vertical stress in rocks with stress-induced anisotropy; and (3) give a theoretical method for accounting for velocity-frequency dispersion in saturated rocks. The new theory of cementation is used to describe stress-strain laws and dynamic moduli in high-porosity granular rocks with clay. The objective of Part 2 is to prove the feasibility of determining maximum and minimum in situ stress azimuth and magnitude from dipole velocity data. The conclusion is that a flexural wave splits into two flexural waves, a slow one and a fast one, that are polarized along the minimum and maximum horizontal stress directions, respectively.
- Research Organization:
- Rock Physics Associates, San Jose, CA (United States)
- OSTI ID:
- 236829
- Report Number(s):
- PB-96-158803/XAB; CNN: Contract GRI-5093-221-2567; TRN: 61211394
- Resource Relation:
- Other Information: DN: See also PB--95-111639; PBD: Mar 1996
- Country of Publication:
- United States
- Language:
- English
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